JDK-8023101 : java/lang/management/MemoryMXBean/ResetPeakMemoryUsage.java fails
- Type: Bug
- Component: core-svc
- Sub-Component: java.lang.management
- Affected Version: 8
- Priority: P3
- Status: Closed
- Resolution: Fixed
- Submitted: 2013-08-15
- Updated: 2014-04-07
- Resolved: 2013-08-22
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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| JDK 8 |
|---|
8 b106Fixed  |
Description
----------messages:(3/223)----------
command: main -XX:+UseG1GC -Xmn8m -XX:G1HeapRegionSize=1m ResetPeakMemoryUsage
reason: User specified action: run main/othervm -XX:+UseG1GC -Xmn8m -XX:G1HeapRegionSize=1m ResetPeakMemoryUsage
elapsed time (seconds): 0.204
----------System.out:(39/1341)----------
Selected memory pool:
Memory Pool name: G1 Old Gen
Type: Heap memory
Memory Usage: init = 57671680(56320K) used = 0(0K) committed = 57671680(56320K) max = 536870912(524288K)
Threshold: 0
Manager = [G1 Old Generation]
Before big object array (of size 9000000) is allocated:
Current Usage:
Initial size = 57671680 (56320K)
Used size = 0
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
Peak Usage:
Initial size = 57671680 (56320K)
Used size = 0
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
After the object is allocated:
Current Usage:
Initial size = 57671680 (56320K)
Used size = 34400384 (33594K)
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
Peak Usage:
Initial size = 57671680 (56320K)
Used size = 34400384 (33594K)
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
After GC:
Current Usage:
Initial size = 57671680 (56320K)
Used size = 34400384 (33594K)
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
Peak Usage:
Initial size = 57671680 (56320K)
Used size = 34400384 (33594K)
Committd size = 57671680 (56320K)
Max size = 536870912 (524288K)
----------System.err:(14/1000)----------
java.lang.RuntimeException: Before GC: used = 34400384 (33594K) expected to be > After GC: used = 34400384 (33594K)
at ResetPeakMemoryUsage.testPool(ResetPeakMemoryUsage.java:121)
at ResetPeakMemoryUsage.main(ResetPeakMemoryUsage.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:724)
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